Add Cone and Cylinder shapes to bevy_render::mesh::shape

[nicopap]

What problem does it solve

I plan to create a debug shape bevy plugin. It would simply just spawns meshes with a special line drawing shader. But currently the default mesh library in bevy is very limited, I would have to implement separately a few of even the most basic shapes! The Bevy shape module misses such basic shapes as a cylinder or cone.

What solution would you like?

I already have working implementation of algorithms to compute cylinder and cone vertices and edges (in the heron debug view implementation)

I only suggest that I personally port those to the bevy shape module. But I first want to know if the addition is welcome, so that it doesn't turn into wasted efforts.

What alternative(s) have you considered?

The other solution is simply that everyone copy the cylinder and cone mesh generation algorithms when they need it. For me it's not a problem given I already did this. But I don't see why the torus gets a pass and not cylinders!

Additional context

Future additions could include a rounded cuboid or arbitrary convex vertex collections. But that's not on the radar currently.

[mockersf]

there has been a lot of discutions around shapes in bevyengine/rfcs#12